I just got a new I2 and I am only getting about 30mph when I have the remote pegged. What am I doing wrong, is there a preference in the app that is limiting my speed?

2 things, make sure you have "multiple flight modes" (or however its worded) enabled in the settings, and on the top left of the remote you have to switch to "sport mode"
In normal flight, you max out at 30 because that is the fastest it can go and operate avoidance systems. in sport mode, avoidance is disabled.